@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* ========================
   CSS VARIABLES – LIGHT THEME
======================== */
:root {
  /* Primary palette */
  --primary:      #0077cc;
  --primary-dim:  #005fa3;
  --primary-dark: #003e72;
  --primary-light: #e8f4ff;
  --primary-mid:  #cce4f6;
  --accent:       #00aadd;

  /* Neutral */
  --white:        #ffffff;
  --off-white:    #f5f9fd;
  --bg-section:   #eef5fb;
  --text:         #1a2940;
  --text-muted:   #5a7295;
  --text-light:   #8aa5c0;
  --border:       #d0e3f0;
  --border-light: #e5eff8;

  /* Components */
  --card-bg:      #ffffff;
  --card-shadow:  0 4px 24px rgba(0,100,180,0.08), 0 1px 4px rgba(0,0,0,0.04);
  --card-shadow-hover: 0 12px 40px rgba(0,100,180,0.16), 0 2px 8px rgba(0,0,0,0.06);
  --glass-bg:     rgba(255,255,255,0.85);
  --glass-border: rgba(0,119,204,0.2);
  --navbar-bg:    rgba(255,255,255,0.96);
  --topbar-bg:    #0077cc;

  /* Shape */
  --radius:       14px;
  --radius-lg:    20px;
  --radius-xl:    28px;
  --transition:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--white);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  line-height: 1.15;
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ========================
   UTILITIES
======================== */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-primary { color: var(--primary); }
.text-muted { color: var(--text-muted); }

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 100px;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dim) 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,119,204,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,119,204,0.42);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(0,119,204,0.07);
  color: var(--primary);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-lg { padding: 15px 36px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 13px; }

.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--card-shadow);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-mid);
}

/* ========================
   SCROLL ANIMATIONS
======================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1),
              transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0;
  transform: translateX(-36px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1),
              transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal-right {
  opacity: 0;
  transform: translateX(36px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1),
              transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal-left.revealed, .reveal-right.revealed { opacity: 1; transform: translateX(0); }

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ========================
   TOP BAR
======================== */
.top-bar {
  background: var(--topbar-bg);
  padding: 7px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.92);
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar-contacts { display: flex; gap: 20px; align-items: center; }

.top-bar-contact {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.9);
  font-size: 13px;
  transition: color 0.2s;
}
.top-bar-contact:hover { color: #fff; }

.top-bar-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.85);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 0 rgba(74,222,128,0.6);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(74,222,128,0.6); }
  70% { box-shadow: 0 0 0 7px rgba(74,222,128,0); }
  100% { box-shadow: 0 0 0 0 rgba(74,222,128,0); }
}

/* ========================
   NAVBAR
======================== */
.navbar { position: sticky; top: 0; z-index: 1000; }

.navbar-main {
  background: var(--navbar-bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: box-shadow var(--transition);
}

.navbar-main.scrolled {
  box-shadow: 0 4px 24px rgba(0,80,160,0.1);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; }

.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border);
}

.logo-icon img { width: 100%; height: 100%; object-fit: cover; }

.logo-text { display: flex; flex-direction: column; line-height: 1.2; }

.logo-name {
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo-name span { color: var(--primary); }
.logo-sub { font-size: 11px; font-weight: 500; color: var(--text-muted); letter-spacing: 0.06em; text-transform: uppercase; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 8px;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.3s;
}

.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link:hover::after { width: 60%; }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { width: 60%; }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  background: var(--off-white);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.hamburger:hover { background: var(--primary-light); border-color: var(--primary); }

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
  display: block;
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile slide-down Menu */
.mobile-menu {
  display: none;
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 12px 0;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1);
}
.mobile-menu.open { display: block; max-height: 500px; }

.mobile-nav-link {
  display: block;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 10px;
  margin: 2px 16px;
  transition: var(--transition);
}
.mobile-nav-link:hover, .mobile-nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
}

.mobile-nav-cta {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  margin-top: 8px;
}

/* ========================
   MOBILE BOTTOM TAB BAR
======================== */
.mobile-tab-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: rgba(255,255,255,0.97);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 -4px 24px rgba(0,80,160,0.1);
  padding: 6px 0 env(safe-area-inset-bottom, 6px);
}

.mobile-tab-bar-inner {
  display: flex;
  align-items: stretch;
  justify-content: space-around;
}

.mobile-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 6px 8px;
  flex: 1;
  color: var(--text-light);
  font-size: 10px;
  font-weight: 600;
  font-family: 'Outfit', sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 10px;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
}

.mobile-tab svg { width: 22px; height: 22px; stroke-width: 1.8; }

.mobile-tab:hover, .mobile-tab.active {
  color: var(--primary);
  background: var(--primary-light);
}

.mobile-tab.active svg { stroke-width: 2.5; }

/* ========================
   PAGE WRAPPER
======================== */
.page-wrapper {
  padding-top: 0; /* navbar is sticky, no need for offset */
}

/* ========================
   HERO SECTION
======================== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 80px 0 60px;
  background: linear-gradient(150deg, #f0f8ff 0%, #e8f4fd 40%, #f5f9ff 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 70% at 70% 50%, rgba(0,119,204,0.07) 0%, transparent 65%),
              radial-gradient(ellipse 40% 50% at 20% 80%, rgba(0,170,221,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.hero-title {
  font-size: clamp(40px, 5.5vw, 72px);
  font-weight: 900;
  line-height: 1.06;
  margin-bottom: 22px;
  color: var(--text);
}

.hero-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.hero-stat { text-align: center; }
.hero-stat-val {
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
}
.hero-stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* Orb visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.orb-container {
  position: relative;
  width: 380px;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orb-ring {
  position: absolute;
  border: 1px solid rgba(0,119,204,0.14);
  border-radius: 50%;
  animation: spin-slow linear infinite;
}

.orb-ring:nth-child(1) { width: 380px; height: 380px; animation-duration: 22s; }
.orb-ring:nth-child(2) { width: 296px; height: 296px; animation-duration: 16s; animation-direction: reverse; border-color: rgba(0,119,204,0.2); }
.orb-ring:nth-child(3) { width: 216px; height: 216px; animation-duration: 11s; border-color: rgba(0,119,204,0.28); }

.orb-ring::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 12px rgba(0,119,204,0.5);
}

@keyframes spin-slow { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.orb-core {
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(0,170,221,0.5), rgba(0,119,204,0.7), rgba(0,60,120,0.9));
  border: 2px solid rgba(0,119,204,0.5);
  box-shadow: 0 0 60px rgba(0,119,204,0.2), inset 0 0 40px rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: float-orb 5s ease-in-out infinite;
  flex-direction: column;
  gap: 4px;
}

@keyframes float-orb {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.orb-symbol {
  font-family: 'JetBrains Mono', monospace;
  font-size: 40px;
  font-weight: 500;
  color: #fff;
  text-shadow: 0 0 20px rgba(255,255,255,0.5);
}

.orb-purity {
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  border: 1px solid var(--border);
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0,80,160,0.1);
}

.sat-badge {
  position: absolute;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(0,80,160,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: default;
  transition: var(--transition);
}

.sat-badge:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 4px 20px rgba(0,119,204,0.18);
}

/* ========================
   SECTION BASE
======================== */
.section { padding: 96px 0; }
.section-sm { padding: 60px 0; }

.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 800;
  margin-bottom: 18px;
  color: var(--text);
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.75;
}

.section-header { text-align: center; margin-bottom: 56px; }
.section-header .section-subtitle { margin: 0 auto; }

/* Alternating bg sections */
.section-alt { background: var(--bg-section); }

/* ========================
   STATS BAND
======================== */
.stats-band {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dim) 100%);
  padding: 56px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: 20px;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255,255,255,0.25);
}

.stat-value {
  font-family: 'Outfit', sans-serif;
  font-size: 52px;
  font-weight: 900;
  line-height: 1;
  color: #fff;
}

.stat-label { font-size: 13px; color: rgba(255,255,255,0.75); margin-top: 8px; font-weight: 500; }

/* ========================
   CARDS
======================== */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.card:hover {
  border-color: var(--primary-mid);
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}
.card:hover::before { opacity: 1; }

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  border: 1px solid var(--primary-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
  transition: var(--transition);
}

.card:hover .card-icon {
  background: var(--primary);
  color: #fff;
}

.card-icon svg { width: 24px; height: 24px; }

.card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.card-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ========================
   FEATURE LIST
======================== */
.feature-list { list-style: none; margin-top: 20px; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-light);
}
.feature-list li:last-child { border-bottom: none; }

.feature-list .check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-light);
  border: 1px solid var(--primary-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.feature-list .check svg { width: 10px; height: 10px; color: var(--primary); }

/* ========================
   TABS (PRODUCT PAGE)
======================== */
.tabs-wrapper { margin-bottom: 40px; }

.tabs-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
  justify-content: center;
  flex-wrap: wrap;
}
.tabs-scroll::-webkit-scrollbar { display: none; }

.tab-btn {
  flex-shrink: 0;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  font-family: 'Outfit', sans-serif;
  cursor: pointer;
  transition: var(--transition);
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover { border-color: var(--primary); color: var(--primary); }
.tab-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dim));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,119,204,0.28);
}

.tab-symbol {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.product-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.product-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.product-symbol-orb {
  width: 70px;
  height: 70px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary-light), var(--primary-mid));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 500;
  color: var(--primary);
  flex-shrink: 0;
}

.product-name { font-size: 26px; font-weight: 800; color: var(--text); }
.product-meta { display: flex; gap: 12px; margin-top: 6px; flex-wrap: wrap; }
.product-purity {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-light);
  padding: 2px 10px;
  border-radius: 100px;
}
.product-un {
  font-size: 13px;
  color: var(--text-muted);
  background: var(--off-white);
  padding: 2px 10px;
  border-radius: 100px;
}

.product-desc { color: var(--text-muted); font-size: 15px; line-height: 1.75; margin-bottom: 24px; }

.applications-title { font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 12px; }

.apps-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.app-tag {
  padding: 5px 14px;
  border-radius: 100px;
  background: var(--off-white);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}
.app-tag:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

.specs-table { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.specs-title { font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 16px; }

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-light);
  transition: background 0.2s;
}
.spec-row:last-child { border-bottom: none; }
.spec-row:hover { background: var(--primary-light); }
.spec-key { font-size: 13px; color: var(--text-muted); }
.spec-val { font-size: 13px; color: var(--text); font-weight: 500; font-family: 'JetBrains Mono', monospace; }

.grades-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 20px; }
.grade-card {
  padding: 14px 16px;
  background: var(--primary-light);
  border: 1px solid var(--primary-mid);
  border-radius: var(--radius);
}
.grade-name { font-size: 13px; font-weight: 600; color: var(--text); }
.grade-purity { font-size: 13px; color: var(--primary); font-family: 'JetBrains Mono', monospace; margin-top: 4px; }

/* ========================
   MIXTURES TABLE
======================== */
.mixtures-table { width: 100%; border-collapse: collapse; }
.mixtures-table th {
  padding: 14px 20px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-section);
  border-bottom: 1px solid var(--border);
}
.mixtures-table td {
  padding: 16px 20px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-light);
  transition: background 0.2s;
  color: var(--text-muted);
}
.mixtures-table tr:hover td { background: var(--primary-light); }

.mixture-name { font-family: 'JetBrains Mono', monospace; font-weight: 500; color: var(--primary); font-size: 15px; }
.mix-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
}
.mix-ar { background: var(--primary-light); color: var(--primary); }
.mix-co2 { background: #fff8e6; color: #b07800; }

/* ========================
   CONTACT PAGE
======================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-card {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
}
.contact-info-card:hover {
  border-color: var(--primary-mid);
  transform: translateY(-2px);
}

.contact-icon-wrap {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary-light);
  border: 1px solid var(--primary-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}
.contact-icon-wrap svg { width: 20px; height: 20px; }

.contact-info-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 6px; }
.contact-info-val { font-size: 15px; color: var(--text); line-height: 1.6; }
.contact-info-val a { transition: color 0.2s; }
.contact-info-val a:hover { color: var(--primary); }

/* Form */
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.form-label span { color: var(--primary); }

.form-input, .form-textarea {
  width: 100%;
  padding: 13px 16px;
  background: var(--off-white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  transition: var(--transition);
  outline: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-light); }
.form-input:focus, .form-textarea:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(0,119,204,0.1);
}
.form-textarea { resize: vertical; min-height: 140px; }

/* Google Map */
.map-embed {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
  height: 280px;
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* ========================
   CTA SECTION
======================== */
.cta-section {
  position: relative;
  overflow: hidden;
  padding: 100px 0;
  background: linear-gradient(150deg, var(--primary) 0%, var(--primary-dim) 60%, var(--primary-dark) 100%);
}

.cta-card {
  text-align: center;
  position: relative;
}

.cta-title { font-size: clamp(28px, 4vw, 42px); font-weight: 900; color: #fff; margin-bottom: 16px; }
.cta-subtitle { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 36px; line-height: 1.75; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta-note { font-size: 13px; color: rgba(255,255,255,0.65); margin-top: 24px; }

.btn-white {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
}
.btn-white:hover { background: #f0f8ff; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,0.18); }

.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.5);
}
.btn-outline-white:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-2px); }

/* ========================
   FOOTER
======================== */
.footer {
  background: var(--text);
  color: rgba(255,255,255,0.75);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer-brand-desc { font-size: 14px; line-height: 1.75; margin: 16px 0 24px; max-width: 280px; }

.social-links { display: flex; gap: 10px; }
.social-link {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.social-link:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.social-link svg { width: 16px; height: 16px; }

.footer-heading {
  font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: #fff; margin-bottom: 20px;
}

.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-link { font-size: 14px; color: rgba(255,255,255,0.6); transition: color 0.2s; }
.footer-link:hover { color: #fff; }

.footer-contact-item { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; }
.footer-contact-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(0,119,204,0.2);
  border: 1px solid rgba(0,119,204,0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.footer-contact-icon svg { width: 16px; height: 16px; }
.footer-contact-text { font-size: 13px; line-height: 1.6; }
.footer-contact-text a { color: rgba(255,255,255,0.7); transition: color 0.2s; }
.footer-contact-text a:hover { color: #fff; }

.footer-logo-name { color: #fff; }
.footer-logo-name span { color: var(--accent); }
.footer-logo-sub { color: rgba(255,255,255,0.5); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

.footer-bottom-row {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}

.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: rgba(255,255,255,0.45); transition: color 0.2s; }
.footer-bottom-links a:hover { color: #fff; }

/* ========================
   PAGE HEROES (inner pages)
======================== */
.page-hero {
  position: relative;
  padding: 72px 0 64px;
  overflow: hidden;
  background: linear-gradient(150deg, #f0f8ff 0%, #e8f4fd 100%);
}

.page-hero-content { position: relative; z-index: 2; text-align: center; max-width: 700px; margin: 0 auto; }
.page-hero-title { font-size: clamp(34px, 5vw, 58px); font-weight: 900; margin-bottom: 18px; color: var(--text); }
.page-hero-subtitle { font-size: 17px; color: var(--text-muted); line-height: 1.75; }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.checklist-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.checklist-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--primary-light);
  border: 1px solid var(--primary-mid);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}
.checklist-item:hover { border-color: var(--primary); color: var(--text); }
.checklist-item svg { width: 16px; height: 16px; color: var(--primary); flex-shrink: 0; }

.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.benefits-band {
  background: var(--bg-section);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
}
.benefits-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.benefit-item { text-align: center; }
.benefit-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  border: 1px solid var(--primary-mid);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
  color: var(--primary);
}
.benefit-icon svg { width: 22px; height: 22px; }
.benefit-title { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.benefit-desc { font-size: 13px; color: var(--text-muted); }

/* Emergency card */
.emergency-card {
  background: linear-gradient(135deg, #fff5f5, #fff0f0);
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  padding: 28px;
}

/* Why choose us items */
.why-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--primary-light);
  border: 1px solid var(--primary-mid);
  border-radius: 12px;
  transition: border-color 0.3s;
}
.why-item:hover { border-color: var(--primary); }

.why-check {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--primary-mid);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

/* SEO section */
.seo-section {
  padding: 48px 0;
  background: var(--bg-section);
  border-top: 1px solid var(--border);
}

.seo-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 20px;
}

.seo-keyword {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 100px;
  background: var(--white);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}
.seo-keyword:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* ========================
   RESPONSIVE
======================== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 52px; }
  .orb-container { width: 300px; height: 300px; }
  .orb-ring:nth-child(1) { width: 300px; height: 300px; }
  .orb-ring:nth-child(2) { width: 236px; height: 236px; }
  .orb-ring:nth-child(3) { width: 172px; height: 172px; }
  .hero-visual { order: -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2)::after { display: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .product-panel { grid-template-columns: 1fr; }
  .checklist-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: none; } /* we use bottom tabs on mobile */
  .mobile-menu { display: none !important; }
  .mobile-tab-bar { display: block; }

  /* Add bottom padding so content isn't hidden behind tab bar */
  body { padding-bottom: 76px; }

  .hero-title { font-size: 36px; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 72px 0; }
  .section { padding: 64px 0; }
  .checklist-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .map-embed { height: 220px; }
  .top-bar { display: none; }

  /* Hero on mobile */
  .hero { min-height: auto; padding: 48px 0 40px; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { justify-content: center; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr 1fr; }
  .orb-container { width: 220px; height: 220px; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-info-card { flex-direction: column; gap: 12px; }
  /* info cards in 2 col */
  .contact-info-cards-grid { grid-template-columns: 1fr 1fr !important; }
}

/* ========================
   LOGO
======================== */
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }

/* ========================
   ICON
======================== */
.icon { display: inline-block; width: 20px; height: 20px; vertical-align: middle; }

/* ========================
   LOADING SKELETON
======================== */
.skeleton {
  background: linear-gradient(90deg, var(--off-white) 0%, var(--border) 50%, var(--off-white) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }